The load applied to the UPS exceeds the user-set threshold, causing overload conditions. The manual's first action is: “Reduce the load to within the threshold of 100% (for user threshold in the case of code A54). If the display shows a lock, remove the load and switch the UPS off and back on again.”
- Model
- Riello Sentinel Dual
- Display shows
- A54
- Type
- Fault code
- Source
- Manual p. 27
What A54 means
THE LOAD APPLIED TO THE UPS IS TOO HIGH p. 27
Common causes
- THE LOAD APPLIED TO THE UPS IS TOO HIGH p. 27
- Load percentage greater than the user threshold set p. 27
What to do
- Reduce the load to within the threshold of 100% (for user threshold in the case of code A54). If the display shows a lock, remove the load and switch the UPS off and back on again. p. 27
Before you service the product, read the safety instructions in the manual p. 26.
If A54 is still not resolved
- contact service / dealer p. 18 “In order to optimise performance, in ECO mode, the load is normally powered by the bypass.”
This page summarises what the manufacturer’s manual says about A54; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with Riello. Found a mistake? Report an error.
